I was going to ask something similar: is it in a trench? Is it possible to deck over? I’m all for removing highways, but the buy-in is more likely if redevelopment doesn’t require that removal. (See: Big Dig, The. Counter-example: see Embarcadero.)
Putting a deck over the freeway is not practical because it would be ludicrously expensive. But even if it weren’t, there would be other problems. I980 becomes an aerial south of 11th Street. That is near the Old Oakland neighborhood — the last place you want a freeway aerial. I980 is also above ground around the Macarthur BART station. Removing I980 (or at least a partial removal) would open the station area up for more TOD,
As far as getting “buy-in”, the tweet came from the Bay Area Council. They are the main business lobbying group in the Bay Area. You can’t get more buy-in than that.
1) I’d doubt there’s enough political will to remove the section north of 580. I suspect the section in question is the one between 880 and 580
2) The trench itself is pretty wide, but the freeway is only 2-3 lanes in each direction. If it were compacted and the intermediate entrances/exits removed, the decking structure wouldn’t have to be very wide or complex. It still might be rather expensive though.
The 580/24 connector ramps actually start north/east of the Macarthur BART station (google map). So 980/24 could be removed beyond the BART station without affecting traffic from Caldecott to the Bay Bridge.
Not to go all rail fan-boy on this outstanding proposal (can I drive the first bulldozer please?) and wildly, ignorantly speculating …
Before filling in the eyesore trench .. .that right of way isn’t a terrible place to place a pair of BART tracks and maybe a station parallel to the 12th-19th three-track choke point and avoiding the critical and slow Oakland wye. Tie in the Transbay route somehow somewhere along 7th [ … somehow or another … umm … exercise for the reader …]